Mower-guard



J. R. EDGAR. MOWER GUARD. APPLICATION FILEDJULY 31. I920- Paten ted' Apr. 5, 1921;

WITNESSES Joan E. nnean, or AVA, ILLINOIS.

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'. 151jica'uon filed. July" si, 1e20, SerialNOLAN/3 f To all w from it may concern Be it known that 1, JOHN R.'EDGAR, a citizen of the United States, and a resident of Ava, in the county of Jackson and State of Illinois, have invented a new and Improved Mower-Guard, of which the following is a full, clear, and exact description.

This invention relates to lmprovements in mower guards, an object of the inventionwing to provide an improved construction of guard finger having integral upper and lower portions secured to opposite sides of the mower bar and exerting pressure or tension upon the cutter bar and cutters to insure a perfect engagement between the cutter blades and the stationary blades or shear plates of the fingers.

A further object is to provide an improved construction of guard finger which can be 20 used on any ordinary mower bar and which is so constructed as to facilitate the assemblage of parts and result in a strong and durable device which will most efiiciently perform the functions intended. Vith these and other objects in view the invention consists in certain novelfeatures of construction, and combinations and arran ements of parts as will be more fully he claim. 7

In the accompanying drawings Figure 1 is a broken fragmentary view: illustrating 'my invention.

plan

2 is a fragmentary inverted plan view.

3 is a view in section on the line 3*3 of Fig. 1.

Fi e is a view in transverse the line H of Fig.

1 represents a mower bar to which my improved guard fingers 2 and 3 are secured; The guard fingers 2 differ in construction from the guard fingers at intervals as may be desired. All of the guard fingers have transverse grooves or recesses for the accommodation of the cutter ar 5 on which, the cutters 6 are secured. The guard fingers 2 are made with integral upper and lower portions 7 and 8 rwhich are secured to the mower bar 1 by bolts 9 and nuts 10. The lower portion 8 constitutes a section on shoe or runner to guide the movement of the recessed, as shown at 16, and openings lcllltlftBl described and pointedout in the 3 and are arranged stationary cutter blades or shear plates 12 over which the movable cutter blades Greciprocate. These plates 12 have notched edges 13 to fit over lugs 14: onthe fingers and are secured to the fingers by rivets 15.; The upper portions of the fingers an;

1 are provided in the upper portions ofthe fingers 2 to accommodate the necessary tools for securing or dislodging the rivets 15. a

The fingers 2 in their upper portions have bearing surfaces 18 which bear upon the cutters 6 and exert suflicient downward pressure thereon to maintain the latter in opera-" tive engagement withthe shear plates 12, thus dispensing with any form of spring pressure device such as is commonly em ployed for the purpose. 7

By providing fingers such as shown at '2 at regularintervals and making these fingers with integral upper and lower portions straddling the mower bar 1 and clamped thereto, 1 not only provide a strong and Specification ofLetters Patent i engagement between said blades and the shear plates 12.- I I It will be noted that the lower portions of the guard fingers are relatively wide and come together on the bottom of mower bar,

and have an extended bearing along the front edge of the mower bar forming asecure bracing system. The upper portion of some of the guard fingers extend over or onto the top of the mower bar and are se-' cured to the top and the bottom of the mower bar forming a rigid bracing throughout; Such bracing does not in anyway interfere with the full cutting operation of the sections or knives.

The operation of the device is the same as the ordinary mower construction; namely, the bar 5 with its cutter 6 is caused to reciprocate through the guard "fingers and exert a shear cut againstthe plates 12 in r V the guard fingers, and by reason of the construction above described, the parts can be h I readily assembled and repaired and an-efiicient operation is insured. j

Various slight changes might be made in described without departing from the invention, and hence I do not limit myself to the precise details set forth, but consider myself the general form and arrangement'of parts a liberty t m e ch changes and al erations as fairly fall within the spirit and portions and having notches receiving the 10 scope of the appended claim. lugs,;rivets securing said shear plates in the claim: fingers, a reciprocating cutter bar mounted The combination with a mower bar, of in the fingers, cutter blades secured to the 5 guard fingers secured to the mower bar and cutter bar and located over the shear plates,

comprising integral upper and lower porand the upper portions of said fingers hav 15. V

tions, both of sand portions secured to the ing bearing surfaces thereon exertin'g'presmower bar, lugs on the lower portions of the sure on said movable outter blades. 7 fingers, shear plates located on the lower JOHN R. EDGAR. 

